散光意味着你的眼睛表面有不规则的曲线. 简单地说:你的眼球应该是一个棒球的形状, but astigmatism causes it to be more like a football. Because your eye is curved unevenly, it has problems focusing light, which means blurry vision at near and far distances.
幸运的是，散光可以用眼镜或隐形眼镜来矫正! 这一切都归结为获得最好的联系来满足你的需求.
Get started with free* contact lenses for astigmatism!
散光 is caused by the irregular curve of your eye. 你可能生来就有散光，或者随着时间的推移你会注意到它. It may also develop after an eye injury or eye surgery. 好消息是, astigmatism is not caused, 或者更糟, by sitting too close to the TV or reading in low light.
散光是完全正常的，而且比你想象的更常见. It affects nearly half the population regardless of age.
散光有两种:规则散光和不规则散光. These terms describe the shape of your eye. 除了近视或远视外，你还可能有散光.
What are symptoms of astigmatism?
如果你看不清路标上的字母或者你必须在更亮的灯光下回复文字, you may have astigmatism.
Other symptoms of astigmatism include:
-Blurry or distorted vision at all distances
眼睛疲劳
头痛
黑眼圈疲劳
眯着眼看
-Difficulty seeing at night
和你的眼科医生讨论这些症状很重要.
How is astigmatism diagnosed?
散光是由眼科医生在每年的眼科检查中使用各种仪器诊断出来的, lenses and lights to measure how your eyes focus. 在此期间，一定要和医生沟通你的担忧或视力模糊. If you do need vision correction for astigmatism, nearsightedness or farsightedness, 你的医生会在彻底检查后给你开处方.
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